Diamond Selector 2 Tester Pen

The Diamond Selector 2 Tester Pen: Your Ultimate Verification Tool

In a market flooded with advanced simulants, peace of mind isn't a luxury—it's a necessity. The Diamond Selector 2 Tester Pen is engineered to deliver rapid, accurate results, allowing you to instantly differentiate genuine diamonds from the most common fake materials like cubic zirconia (CZ) and glass. Whether you are a professional jeweler, a savvy collector, or a consumer making a significant purchase, this device empowers you with verification certainty.

We built this description for everyone who has ever doubted a stone. Customers often tell us that the anxiety of buying an expensive item online vanishes the moment the Diamond Selector 2 confirms their purchase. It truly is the essential tool for trust in the gemstone world.

Why Verification is More Important Than Ever

The rise of high-quality alternatives and the sophistication of synthetic stones mean that relying solely on the eye is risky. When you invest in an "affordable engagement ring" or a heirloom piece, you need assurance that the material matches the price tag. The Diamond Selector 2 relies on thermal conductivity—a physical property that cannot be replicated by simulants like CZ, which may "sparkle like a diamond" but do not share its heat transfer characteristics.

Safeguard Your Investment

This tester is particularly vital if you are considering purchasing an "ethical diamond alternative" or a sophisticated "lab-created gemstone." While the Diamond Selector 2 will confidently rule out inexpensive fakes (like quartz or common glass), it helps you narrow down the possibilities, ensuring that you only proceed with further verification steps for stones that pass the initial heat test.

The truth is, even experienced gemologists sometimes need an unbiased digital assessment, and that’s what this pen delivers—zero guesswork.

Key Features for Maximum Reliability

The Diamond Selector 2 is designed for both accuracy and user comfort, featuring robust engineering housed in a lightweight, ergonomic casing perfect for use in the shop or on the go.

• Rapid Warm-Up: Ready to use in seconds, minimizing wait time between tests.
• Accurate Thermal Probe: Utilizes precise thermal conductivity measurement specific to diamond structures.
• Clear Indicators: Features a 10-segment LED scale (green light confirms diamond status) and an audible signal, providing dual confirmation that is easy to interpret.
• Metal Alert System: An integrated warning buzzer sounds if the tip accidentally touches the metal setting instead of the stone. This prevents false positives and ensures the probe remains on the gem surface for accurate readings. We love how this simple feature saves time and protects the delicate probe tip!
• Low Battery Indicator: Ensures you always test at optimal power levels for reliable results.

How to Achieve the Best Results

Testing is straightforward. Ensure the device is calibrated according to ambient temperature (see our detailed How to Test Diamonds: A Step-by-Step Manual for the Diamond Selector II for a full guide) and place the probe tip perpendicular to the stone. The device handles the rest, analyzing the heat dissipation instantly.

We recommend always testing multiple points on larger stones for complete certainty. The precision tip allows you to accurately test even small accent stones—a feature professional dealers rely on daily.

Addressing Common Shopper Questions

Q: Will the Diamond Selector 2 identify Moissanite?

A: No. Standard thermal testers like the Diamond Selector 2 were primarily designed to separate CZ and glass from diamonds. Because Moissanite has thermal conductivity extremely close to natural diamond, it often registers as positive on thermal testers. If you are specifically trying to differentiate diamond from Moissanite, a dedicated Moissanite tester (or a combined thermal/electrical tester) is required. However, the Diamond Selector 2 remains the best and fastest tool for ruling out the vast majority of inexpensive fakes.

Q: Is this difficult to use if I’ve never tested a diamond before?

A: Absolutely not. The design focuses on intuitive operation. Once the device is warmed up, the system is color-coded: red means metal or fake, and green means genuine diamond. If you are verifying that beautiful stone in your new ring purchase, you’ll have your answer in less than five seconds.

The Diamond Selector 2 is more than a tool; it is your personal safeguard against misrepresentation, giving you the confidence to buy, sell, and appreciate genuine stones.